Successful cardiopulmonary resuscitation combined with thrombolysis for massive pulmonary embolism during peri-cardiac arrest

Dear editor,Pulmonary thromboembolism(PTE)has become the third most lethal type of thrombotic disease in the world.[1]Thrombolysis has been advised for high-risk PTE patients,however due to its unique pathophysiology,which differs from other atherosclerotic diseases,this can still be a challenge for PTE patients.[2]We reported two cases with a high-risk of PTE that had the onset of or progressed to cardiac arrest(CA)during hospitalization and were successfully managed with cardiopulmonary resuscitation(CPR)combined with thrombolytic therapy.

不同培养方法对小鼠脂肪干细胞成骨分化的影响

目的比较组织块贴壁法及胶原酶消化法所得脂肪干细胞的成骨分化能力。方法分别采用组织块贴壁法及胶原酶消化法原代培养小鼠脂肪干细胞,观察细胞形态及细胞增殖情况,并进行细胞鉴定,比较两者成骨分化能力。结果两种方法所得脂肪干细胞在形态学上无差异,培养至第3代,细胞生长状态良好,生物学特性稳定,CD44、Sca-1表达率>90%,CD31表达率<10%,具有较好的成脂、成骨分化能力;组织块贴壁法培养所得脂肪干细胞增殖率高于胶原酶消化法(P<0.05);组织块贴壁法培养所得脂肪干细胞矿化结节、ALP活性及钙离子浓度高于胶原酶消化法(P <0.05)。结论组织块贴壁法相对胶原酶消化法在脂肪干细胞培养及成骨诱导分化过程中更具优势。